At least 20 students died after a storm at a waterfall in Ghana caused trees to fall on them while swimming.

Wind and heavy rain appears to have caused the accident, in which large falling trees trapped daytrippers in a pool at the bottom of the Kintampo waterfalls, one of the highest in the country, in the Brong-Ahafo region, it was reported.

Surrounded by mahogany trees and sunbirds, the three-stage waterfall is about 70 metres high, and its pool is often found full of people cooling off in the spray.